CN101580972A - Hollow bamboo charcoal cellulose fiber and preparation method thereof - Google Patents
Hollow bamboo charcoal cellulose fiber and preparation method thereof Download PDFInfo
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- CN101580972A CN101580972A CNA200910015991XA CN200910015991A CN101580972A CN 101580972 A CN101580972 A CN 101580972A CN A200910015991X A CNA200910015991X A CN A200910015991XA CN 200910015991 A CN200910015991 A CN 200910015991A CN 101580972 A CN101580972 A CN 101580972A
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- 235000017166 Bambusa arundinacea Nutrition 0.000 title claims abstract description 92
- 235000017491 Bambusa tulda Nutrition 0.000 title claims abstract description 92
- 241001330002 Bambuseae Species 0.000 title claims abstract description 92
- 235000015334 Phyllostachys viridis Nutrition 0.000 title claims abstract description 92
- 239000011425 bamboo Substances 0.000 title claims abstract description 92
- 239000003610 charcoal Substances 0.000 title claims abstract description 91
- 229920003043 Cellulose fiber Polymers 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 239000000835 fiber Substances 0.000 claims abstract description 52
- 238000009987 spinning Methods 0.000 claims abstract description 34
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 33
- 229920002678 cellulose Polymers 0.000 claims abstract description 31
- 239000001913 cellulose Substances 0.000 claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229910001868 water Inorganic materials 0.000 claims abstract description 26
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims abstract description 16
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 claims abstract description 8
- 239000000843 powder Substances 0.000 claims abstract description 8
- 238000002166 wet spinning Methods 0.000 claims abstract description 7
- 238000000227 grinding Methods 0.000 claims abstract description 6
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 24
- 239000000243 solution Substances 0.000 claims description 14
- 239000008267 milk Substances 0.000 claims description 13
- 235000013336 milk Nutrition 0.000 claims description 13
- 210000004080 milk Anatomy 0.000 claims description 13
- 239000002002 slurry Substances 0.000 claims description 13
- 238000005516 engineering process Methods 0.000 claims description 12
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 12
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 12
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 10
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 10
- 238000007670 refining Methods 0.000 claims description 10
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 10
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 8
- 230000015271 coagulation Effects 0.000 claims description 6
- 238000005345 coagulation Methods 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 239000007864 aqueous solution Substances 0.000 claims description 5
- 239000000839 emulsion Substances 0.000 claims description 5
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 5
- 235000011152 sodium sulphate Nutrition 0.000 claims description 5
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 5
- 229960001763 zinc sulfate Drugs 0.000 claims description 5
- 229910000368 zinc sulfate Inorganic materials 0.000 claims description 5
- 239000003513 alkali Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 2
- 229920000297 Rayon Polymers 0.000 abstract description 43
- 229910052799 carbon Inorganic materials 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 238000002156 mixing Methods 0.000 abstract description 4
- 229920000742 Cotton Polymers 0.000 description 16
- 238000005406 washing Methods 0.000 description 11
- 239000002270 dispersing agent Substances 0.000 description 8
- 235000019982 sodium hexametaphosphate Nutrition 0.000 description 8
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 8
- 238000006477 desulfuration reaction Methods 0.000 description 7
- 230000023556 desulfurization Effects 0.000 description 7
- 239000003292 glue Substances 0.000 description 7
- 239000002253 acid Substances 0.000 description 6
- 239000004604 Blowing Agent Substances 0.000 description 5
- 241000209094 Oryza Species 0.000 description 5
- 235000007164 Oryza sativa Nutrition 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 235000009566 rice Nutrition 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000004090 dissolution Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 239000008234 soft water Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000000844 anti-bacterial effect Effects 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 125000001309 chloro group Chemical group Cl* 0.000 description 2
- 230000001112 coagulating effect Effects 0.000 description 2
- 150000001875 compounds Chemical group 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000004753 textile Substances 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 1
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 1
- 229920000875 Dissolving pulp Polymers 0.000 description 1
- 230000001046 anti-mould Effects 0.000 description 1
- 239000002546 antimould Substances 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 235000009120 camo Nutrition 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 235000005607 chanvre indien Nutrition 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 235000012489 doughnuts Nutrition 0.000 description 1
- 238000004043 dyeing Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000011487 hemp Substances 0.000 description 1
- 239000001814 pectin Substances 0.000 description 1
- 229920001277 pectin Polymers 0.000 description 1
- 235000010987 pectin Nutrition 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 229940089401 xylon Drugs 0.000 description 1
Abstract
The present invention discloses a hollow bamboo charcoal cellulose fiber and a preparation method thereof. The hollow bamboo-carbon cellulose fiber comprises cellulose and micro powder of bamboo charcoal. Furthermore, the mass ratio of the cellulose to the micro powder of bamboo charcoal is 98-84: 2-16. The hollow bamboo charcoal cellulose fiber has the following performance indexes: 2.4 to 2.8CN/dtex of dry strength, 1.8 to 2.4CN/dtex of wet strength, 12 to 15 percent of elongation at break, and 20 to 35 percent of hollowness. Furthermore, the hollow bamboo charcoal cellulose fiber is prepared by mixing and grinding cellulose sulfonate, the micro powder of bamboo charcoal, sodium bicarbonate, sodium hydroxide and water to prepare a uniform spinning solution and adopting a wet spinning process to prepare the fiber. According to the invention, the single performances of absorbability and the like of the hollow viscose fiber and bamboo charcoal viscose fiber are increased and strengthened. Furthermore the hollow bamboo charcoal cellulose fiber is added with new efficacies and has the advantages and performance characteristics of two fibers.
Description
Technical field
The present invention relates to the cellulose fibre technology, especially relate to a kind of complex function type cellulose fibre and preparation method thereof, be meant a kind of cellulose fibre and preparation method thereof especially with doughnut and bamboo-carbon fibre double grading.
Background technology
Along with the progress of society and the raising of living standards of the people, the idea of people's dressing is also upgraded constantly, and the comfortable aesthetic property of the functional and product of textiles is had higher requirement.And the production of natural fabrics such as cotton, fiber crops, silk, hair is subjected to natural climate and grain and cotton to strive the influence of ground contradiction, and increase of production is very slow, far away can not practical requirement.Though synthetic fiber are not subjected to the influence of factors such as weather, soil, and fiber itself has stronger mechanical property, but its raw material is non-renewable, fiber can't natural degradation, does not meet green, environmental protection, sustainable development direction, and this characteristics have limited its application and development greatly.Therefore, functional viscose new varieties are subject to people's attention just day by day and favor.
Viscose mainly is to be the cellulose fibre of raw material production with cotton or xylon, and its maximum characteristics are very similar to some wearability of natural cotton fiber, as moisture absorption, ventilative, easy dyeing, antistatic and performance such as easily spin.But viscose is purer than the essence of natural cotton fiber.The content of cellulose of viscose is more than 99.5%, and cotton fiber is at 95-97%; The fat and the wax of viscose account for 0.2-0.3%, and cotton fiber accounts for 0.5-0.6%; Viscose does not have chlorine-bearing compound, and chlorine-bearing compound accounts for 1-1.1% in the cotton fiber; Viscose does not contain pectin and the eleventh of the twelve Earthly Branches sugar that contracts more, and cotton fiber contains 1.2%; The content of other ash of viscose is trace, and the content of cotton fiber ash reaches 1.14%.The anti-daylight of viscose, anti-insect, heat-resisting, chemical-resistant resistance, anti-ly melt agent, anti-mould, in main textile fabric, its premium properties is comparatively comprehensive.Therefore, viscose has " cotton essence, the quality of silk ", is genuine ecological fiber.Yet it comes from the sky and is better than natural.
The performance of viscose excellence and can the basis of customized characteristics on, people have developed new varieties such as Fire resistant viscose fiber, bamboo-carbon viscose fibre, antibacterial viscose fiber, Hollow Viscose Fiber again, give the viscose distinct more functional respectively, satisfied the growing diversification of people, personalized life requirement.But so that the fiber of producing combines the production of the functional form fiber of the advantage of each fiber before the combination and Performance Characteristics, still there is not introduction at present for the combination of above-mentioned varieties and functions viscose.
Summary of the invention
Technical problem to be solved by this invention has provided and a kind ofly Hollow Viscose Fiber, bamboo-carbon viscose fibre individual event performances such as adsorptivity separately are improved and have strengthened, and increased new effect again, combine the functional form fiber hollow bamboo charcoal cellulose fibre of the advantage and the Performance Characteristics of two kinds of fibers, and the preparation method of hollow bamboo charcoal cellulose fibre.
The hollow bamboo charcoal cellulose fibre, it is characterized in that: this hollow bamboo charcoal cellulose fibre contains cellulose and bamboo charcoal micropowder, and cellulose and bamboo charcoal micropowder quality proportioning are 98-84: 2-16, the dried of this hollow bamboo charcoal cellulose fibre is 2.4-2.8CN/dtex by force, wet is 1.8-2.4CN/dtex by force, elongation at break is 12-15%, degree of hollowness 20-35%.And this hollow bamboo charcoal cellulose fibre is by grinding the spinning solution of making homogeneous after cellulose sulfonate, bamboo charcoal micropowder, sodium bicarbonate, NaOH and the water blend, adopting wet spinning technology to make fiber.
This hollow bamboo charcoal cellulose fibre preparation method, at first make cellulose sulfonate with cellulose pulp, then cellulose sulfonate is dissolved, add sodium hydroxide solution to cellulose sulfonate earlier in the dissolving, add bamboo charcoal water and milk slurry and sodium bicarbonate powder again, cellulose sulfonate wherein, bamboo charcoal micropowder, sodium bicarbonate, the mass ratio of NaOH is 154: 0.2-16: 1-20: 65-70, and with the water use amount be cellulose sulfonate, bamboo charcoal micropowder, sodium bicarbonate, the mass ratio of NaOH and water is 154: 0.2-16: 1-20: 65-70: 1050-1055, preferred cellulose sulfonate, bamboo charcoal micropowder, sodium bicarbonate, the mass ratio of NaOH and water is 154: 0.2-16: 1-20: 67: 1052, afterwards through stirring, grind, make spinning solution after filtration and the deaeration, adopt wet spinning technology to make fiber again.Like this when spinning, thereby the blowing agent sodium bicarbonate in the viscose glue thread reacts with coagulating bath in the fiber coagulation forming and generates carbon dioxide and overflow and give fiber loose many empty structures.One or more combination is stretching in interior stretching, refining and oven dry and makes hollow bamboo charcoal cellulose fibre finished product nascent fiber after the spinning through stretching between jet stretch, dish, predraft, plasticizing-bath stretchings, negative stretch etc. again.
The concrete method for making of cellulose sulfonate is following can be adopted at room temperature, cellulose pulp such as the cotton pulp dregs of rice or bamboo pulp or hemp dissolving pulp etc. are alkalized in the NaOH of the mass content 10-70% aqueous solution generated alkali cellulose in 0.5-2 hour, press dry the back in experienced drum experienced 1-3 hour, can adopt when pressing dry squeeze to the 0.5-5 of the fine dry weight of alkali doubly, afterwards again with CS
2Reaction generates cellulose sulfonate.
The index of the above-mentioned cellulose pulp such as the cotton pulp dregs of rice is DP=500-620, alpha cellulose mass content 〉=92%; And being prepared as of bamboo charcoal water and milk slurry is earlier selected with bamboo charcoal, coarse crushing, dedusting, be crushed to the bamboo charcoal micropowder of fineness≤0.4 micron again, then bamboo charcoal micropowder and sodium hexametaphosphate dispersant are put into water, obtain bamboo charcoal water and milk slurry, wherein the mass ratio of bamboo charcoal micropowder and water is 1: 4-6, the addition that is preferably 1: 5 sodium hexametaphosphate dispersant is less than 4% of quality of the emulsion.
Adopt wet spinning to make fiber, above-mentioned spinning solution is clamp-oned in the coagulating bath with certain initial velocity through shower nozzle, spinning coagulation bath consists of the sulfuric acid of 70-150g/L, the sodium sulphate of 260-350g/L, 8-70g/L zinc sulfate, temperature 40-55 degree centigrade.Spinning speed can adopt 10-80m/min.In the above-mentioned hollow bamboo charcoal viscose, bamboo charcoal micropowder homogeneous phase in fibrous matrix distributes, and has fully played the health care of bamboo charcoal.Above-mentioned fiber is one or more combination stretching such as stretching, predraft, plasticizing-bath stretchings, negative stretch through between jet stretch, dish, and total draw ratio can be adopted as 30-200%.After refining and oven dry processing, the physical and mechanical properties of gained fiber is similar to the viscose of suitable kind.
Described refining treatment comprises that conventional disacidify is washed, washing, desulfurization, washing, bleaching and last wet goods link.
Product of the present invention can be used for fibrefill material, filtering material, health-care clothing etc.
Hollow bamboo charcoal viscose of the present invention is to be matrix with the viscose, in spinning solution preparation, add bamboo charcoal water and milk slurry and blowing agent sodium bicarbonate, and the composite functional fiber with Hollow Viscose Fiber and bamboo-carbon viscose fibre two specific characters that obtains by spinning technique.Above-mentioned fiber is cavity-like structure, this structure make fiber fluffy, warming, adsorptivity is strong; And in fibrous matrix, being evenly distributed with a large amount of bamboo charcoal micropowder, it gives the peculiar absorption of fiber bamboo charcoal, health care, effect such as antibacterial.This structure of above-mentioned fiber and characteristics have not only remedied the shortcoming that the Hollow Viscose Fiber difficulty foams, the space is few, degree of hollowness is low, and the effect of having given the distinctive antibiotic health care of its bamboo-carbon fibre again.The Hollow Viscose Fiber that makes like this, bamboo-carbon viscose fibre individual event performances such as adsorptivity separately are improved and strengthen, and have increased new effect again, combine the advantage and the performance of two kinds of fibers, thereby have widened the scope and the field of its use greatly.
The specific embodiment
Embodiment 1: the method for spinning 1.5D * 38mm hollow bamboo charcoal viscose staple fibre: raw material is the cotton pulp dregs of rice, bamboo charcoal, sodium bicarbonate powder, and the bamboo charcoal addition accounts for 15% of alpha cellulose quality, and the sodium bicarbonate addition accounts for 10% of alpha cellulose quality,
(1), coarse crushing selected, dedusting, is crushed to the bamboo charcoal micropowder of fineness≤0.4 micron again to bamboo charcoal.
(2) bamboo charcoal micropowder and sodium hexametaphosphate dispersant are put into soft water and mix, obtain bamboo charcoal water and milk slurry, the ratio of bamboo charcoal micropowder and water is 1: 5, and the addition of sodium hexametaphosphate dispersant is less than 4% of quality of the emulsion.
(3) obtain spinning solution with mixing through 4 hours in bamboo charcoal water and milk slurry and the blowing agent sodium bicarbonate aqueous solution adding viscose glue, grinding in the viscose glue course of dissolution, its index is a first fibre 8.9%, viscosity 46S, degree of ripeness 14ml.
(4) with above-mentioned spinning solution after filtering for three times, carry out the deaeration of 5h again and handle, obtain qualified hollow bamboo charcoal viscose staple fibre according to following spinning technology parameter, acid bath index, refining condition:
Spinning technology parameter:
Spinning head aperture 1.5D spins between relative humidity 70 ± 5% spinning of fast 38m/min workshop 25 ± 5 ℃ of temperature
The acid bath index:
49 ± 1 ℃ of sulfuric acid 105 ± 1g/l zinc sulfate 10.5 ± 0.5g/l sodium sulphate 320 ± 5g/l coagulation bath temperatures
Refining condition:
60 ± 5 ℃ of desulfurization temperature 70-75 ℃ of 60 ± 5 ℃ of three washing temperature of 60 ± 5 ℃ of two washing temperature of one washing temperature
Desulfurization concentration 4.0g/l goes up oil temperature and goes up oil concentration 3.0 ± 0.5g/l for 55 ± 5 ℃.
Embodiment 2: the method for spinning 2.0D * 41mm hollow bamboo charcoal viscose staple fibre: raw material is the cotton pulp dregs of rice, bamboo charcoal micropowder, sodium bicarbonate powder, and the bamboo charcoal addition accounts for 10% of alpha cellulose quality, and the sodium bicarbonate addition accounts for 15% of alpha cellulose quality,
(1), coarse crushing selected, dedusting, is crushed to the bamboo charcoal micropowder of fineness≤0.4 micron again to bamboo charcoal.
(2) bamboo charcoal micropowder and sodium hexametaphosphate dispersant are put into soft water and mix, obtain bamboo charcoal water and milk slurry, bamboo charcoal micropowder with
The ratio of water is 1: 5, and the addition of sodium hexametaphosphate dispersant is less than 4% of quality of the emulsion.
(3) in the viscose glue course of dissolution, bamboo charcoal water and milk slurry and blowing agent sodium bicarbonate aqueous solution are added in the viscose glue through mixing in 4 hours, grinding
Obtain spinning solution, its index is a first fibre 8.4%, viscosity 40S, degree of ripeness 13ml.
(4) with above-mentioned spinning solution after filtering for three times, carry out the deaeration of 5h again and handle, according to following spinning technology parameter, acid
Bath index, refining condition obtain qualified hollow bamboo charcoal viscose staple fibre:
Spinning technology parameter:
Spinning head aperture 2.0D spins between relative humidity 70 ± 5% spinning of fast 45m/min workshop 25 ± 5 ℃ of temperature
The acid bath index:
49 ± 1 ℃ of sulfuric acid 102 ± 1g/l zinc sulfate 11.5 ± 0.5g/l sodium sulphate 330 ± 5g/l coagulation bath temperatures
Refining condition:
60 ± 5 ℃ of desulfurization temperature 70-75 ℃ of 60 ± 5 ℃ of three washing temperature of 65 ± 5 ℃ of two washing temperature of one washing temperature
Desulfurization concentration 3.8g/l goes up oil temperature and goes up oil concentration 2.8 ± 0.5g/l for 55 ± 5 ℃.
Embodiment 3: the method for spinning 3.0D * 51mm hollow bamboo charcoal viscose staple fibre: raw material is the cotton pulp dregs of rice, bamboo charcoal micropowder, sodium bicarbonate powder, and the bamboo charcoal addition accounts for 6% of alpha cellulose quality, and the sodium bicarbonate addition accounts for 20% of alpha cellulose quality.
(1), coarse crushing selected, dedusting, is crushed to the bamboo charcoal micropowder of fineness≤0.4 micron again to bamboo charcoal.
(2) bamboo charcoal micropowder and sodium hexametaphosphate dispersant are put into soft water and mix, obtain bamboo charcoal water and milk slurry, the ratio of bamboo charcoal micropowder and water is 1: 5, and the addition of sodium hexametaphosphate dispersant is less than 4% of quality of the emulsion.
(3) obtain spinning solution with mixing through 4 hours in bamboo charcoal water and milk slurry and the blowing agent sodium bicarbonate aqueous solution adding viscose glue, grinding in the viscose glue course of dissolution, its index is a first fibre 8.2%, viscosity 35S, degree of ripeness 16ml.
(4) with above-mentioned spinning solution after filtering for three times, carry out the deaeration of 5h again and handle, obtain qualified hollow bamboo charcoal viscose staple fibre according to following spinning technology parameter, acid bath index, refining condition:
Spinning technology parameter:
Spinning head aperture 3.0D spins between relative humidity 70 ± 5% spinning of fast 50m/min workshop 25 ± 5 ℃ of temperature
The acid bath index:
49 ± 1 ℃ of sulfuric acid 95 ± 1g/l zinc sulfate 12.5 ± 0.5g/l sodium sulphate 330 ± 5g/l coagulation bath temperatures
Refining condition:
60 ± 5 ℃ of desulfurization temperature 70-75 ℃ of 60 ± 5 ℃ of three washing temperature of 65 ± 5 ℃ of two washing temperature of one washing temperature
Desulfurization concentration 3.7g/l goes up oil temperature and goes up oil concentration 2.7 ± 0.5g/l for 55 ± 5 ℃.
Claims (8)
1, hollow bamboo charcoal cellulose fibre, it is characterized in that: this hollow bamboo charcoal cellulose fibre contains cellulose and bamboo charcoal micropowder, and cellulose and bamboo charcoal micropowder quality proportioning are 98-84: 2-16, the dried of this hollow bamboo charcoal cellulose fibre is 2.4-2.8CN/dtex by force, wet is 1.8-2.4CN/dtex by force, elongation at break is 12-15%, degree of hollowness 20-35%.
2, hollow bamboo charcoal cellulose fibre as claimed in claim 1, it is characterized in that: this hollow bamboo charcoal cellulose fibre is by the spinning solution that grinds to form homogeneous after cellulose sulfonate, bamboo charcoal micropowder, sodium bicarbonate, NaOH and the water blend, adopts wet spinning technology to make fiber.
3, hollow bamboo charcoal cellulose fibre preparation method, it is characterized in that at first making cellulose sulfonate with cellulose pulp, then cellulose sulfonate is dissolved, add sodium hydroxide solution to cellulose sulfonate earlier in the dissolving, add bamboo charcoal water and milk slurry and sodium bicarbonate powder again, wherein the mass ratio of cellulose sulfonate, bamboo charcoal micropowder, sodium bicarbonate, NaOH is 154: 0.2-16: 1-20: 65-70, after stirring, grinding, filtration and deaeration, make spinning solution afterwards, adopt wet spinning technology to make fiber again.
4, hollow bamboo charcoal cellulose fibre preparation method as claimed in claim 3, it is characterized in that: with cellulose pulp is NaOH aqueous solution alkalization generation in the 0.5-2 hour alkali cellulose of 10-70% through mass content, pressed dry the back experienced 1-3 hour, yellow generates cellulose sulfonate again.
5, as hollow bamboo charcoal cellulose fibre preparation method as described in the claim 3, it is characterized in that being prepared as of bamboo charcoal water and milk slurry is earlier selected with bamboo charcoal, coarse crushing, dedusting, be crushed to fineness≤0.4 micron bamboo charcoal micropowder again, then bamboo charcoal micropowder and calgon are put into water, obtain bamboo charcoal water and milk slurry, wherein the mass ratio of bamboo charcoal micropowder and water is 1: 4-6, the addition of calgon is less than 4% of quality of the emulsion.
6, hollow bamboo charcoal cellulose fibre preparation method as claimed in claim 3, it is characterized in that: the index of cellulose pulp is DP=500-620, alpha cellulose mass content 〉=92%.
7, hollow bamboo charcoal cellulose fibre preparation method as claimed in claim 3, it is characterized in that: the wet spinning coagulation bath composition is the sulfuric acid of 70-150g/L, the sodium sulphate of 260-350g/L, 8-70g/L zinc sulfate, temperature 40-55 degree centigrade.
8, as each described hollow bamboo charcoal cellulose fibre preparation method in the claim 3 to 7, it is characterized in that: fiber nascent after the spinning is stretched, the hollow bamboo charcoal cellulose fibre is made in refining and oven dry.
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